WD 1145+017
A light curve for WD 1145+017 showing a dimming event, adapted from Xu et al. (2019). The green dots are the data points and the blue line is the best fit model from the Xu et al. paper. | |
| Observation data Epoch J2000.0 Equinox J2000.0 | |
|---|---|
| Constellation | Virgo |
| Right ascension | 11h 48m 33.62972s |
| Declination | +01° 28′ 59.4204″ |
| Apparent magnitude (V) | 17.24±0.02 |
| Characteristics | |
| Evolutionary stage | White dwarf |
| Spectral type | DB |
| Astrometry | |
| Proper motion (μ) | RA: -43.664 mas/yr Dec.: -4.027 mas/yr |
| Parallax (π) | 6.8534±0.0907 mas |
| Distance | 476 ± 6 ly (146 ± 2 pc) |
| Details | |
| Mass | 0.63±0.05 M☉ |
| Radius | 0.012±0.001 R☉ |
| Luminosity | 0.0088±0.0021 L☉ |
| Surface gravity (log g) | 8.07±0.07 cgs |
| Temperature | 15,020±520 K |
| Age | 774±130 Myr |
| Other designations | |
| WD 1145+017, EPIC 201563164 | |
| Database references | |
| SIMBAD | data |
WD 1145+017 (also known as EPIC 201563164) is a white dwarf approximately 476 light-years (146 parsecs) from Earth in the constellation of Virgo. It is the first white dwarf to be observed with a transiting minor planet orbiting it.